Typically you would use CRM software(web-based nowadays), youtube is full of videos with examples of how some people use and customize the software.

I'm not sure if this is the one I was thinking of, but I swear there's a software I came across long time ago as alternative to sub metering.

Did you use any specicif software to help calculate this?

I promised that I would share my experience so hopefully others can avoid the same problems I had.They promised that the software would simplify our business practices and help us to run our business. 

Hello,Just curious as to what everyone is using for their note buying/selling/originating business?  I'm currently using Quickbooks 2007 for my rentals, and have been thinking of updating to the newer version to go al...

Can you recommend a FREE software to track income/expenses for an apartment I purchased with some partners?

Still working the bugs out of the software. 

I used it since 2002 when I switched from Quicken, and prior to that several other software packages.

Be sure to do your due diligence and if you find a property, it must cash flow positive after mortgage, taxes, insurance and repairs are figured into the equation.Finally before you buy something get familiar with a property management software which you can learn and use when you do find that first property. 

Beyond the easily visible and predictable flooring/repainting/cleaning/landscaping costs, figure that you will have more than one discovery of other important issues - the water heater needs to be replaced, the garbage disposal seizes up, the rain gutters are broken, some internal wiring is messed up and a light doesn't work, a bathroom fan starts making lots of noise after its run for a few minutes, a water main breaks..Make sure you have a cash cushion - or line of credit (credit card in a pinch) which you can use to address unexpected costs, some of which can be pricey.